‘‘You’re seeing the same kinds of trends in ice cream that you’re seeing in other foods,’’ says Peggy Armstrong, spokeswoman for the International Dairy Foods Association. ‘‘People are willing to experiment.’’

Just a generation ago, Americans mostly bought their ice cream at the supermarket in recognizable flavors that occasionally sported chocolate chips or a swirl of some kind. Today, regular old ice cream has been joined by boutique items such as gelato, sorbet, and water ice, as well as an army of flavors that seem more at home in an Italian restaurant — opal basil lemon sorbet, anyone? — than in your local freezer aisle.

Americans ate nearly 1.6 billion gallons of ice cream and other frozen dairy desserts in 2012. But traditional ice cream’s share of that market has been shrinking, edged out by specialty items such as frozen yogurt and gelato. In 2012, production of regular ice cream hit its lowest point since 1996, the Dairy Foods Association says, hitting fewer than 900 million gallons.

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Boutique scoop shops and artisanal producers have flooded the landscape during the last five to 10 years, introducing audiences to a wider range of flavors and textures. Cumin and honey butterscotch, salty vanilla, and pumpernickel are typical of Jeni’s Splendid Ice Creams, an Ohio-based producer that has gone national. Uber-hip Coolhaus, which has parlayed ice cream trucks and storefronts into distribution in 2,000 supermarkets, offers Cuban cigar, spicy pineapple-cilantro, and even fried chicken and waffle ice cream.

‘‘The flavor we thought nobody would buy was balsamic fig mascarpone, and that’s the one we’re out of,’’ says Coolhaus co-founder Natasha Case about the company’s recent experience at a trade show. ‘‘All the buyers want that one. Two years ago, we were out of vanilla. That buyer at that show who does five to 300 grocery chains wants to know what’s cool, whereas before they just wanted to know that you could do vanilla well.’’

Though we are in an intense period of flavor experimentation, the desire to go beyond chocolate, vanilla, and strawberry dates to the post-World War II era, says Laura B. Weiss, author of ‘‘Ice Cream: A Global History.’’ That’s when Howard Johnson, known for his roadside restaurants, tried to persuade Americans to indulge in his famous 28 flavors. Among them: maple walnut, burgundy cherry, and fruit salad.

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